Power device



J. E. PARRISH June 2l, 1960 POWER DEVICE 2 Sheets-Sheet l Filed Dec. 11,1958 IN V EN TOR. JA MES E F RR/sH June 21, 1960 J. E. PARRlsl-l PowRDEVICE 2 Sheets-Sheei 2 Filed Dec. l1, 1958 INVENTOR. JAMES E Ram/5HPOWER DEVICE James E. Parrish, P.0. Box 15,4, Intercession City, Fla.

Filed Dec. 11, 19158, Ser. No.` 779,621

3 Claims. (Cl. ISU-6.2)

The present invention `generally relates to a motive power plant andmore particularly to a uid motor for use in vehicles or in any otherplace in which power is needed.

The power device of the present invention generally incorporates a gasengine, -an air compressor and an air pressure tank communicated with lapair of oil reservoirs, one oil reservoir being empty of oil and onebeing full of oil, the empty tank having air under pressure thereinserving to forcefully pump the oil from the full reservoir to the emptyreservoir by allowing flow of oil to be passed through a uid motorconnected to the driving wheels of a vehicle for driving a vehicle .inresponse to movement of oil from one reservoir to the other, and havingautomatic valve control whereby the flow of oil is automaticallyreversed by a cam mechanism.

The primary object of the present invention is to provide a fluid motorfor mobile vehicles which is extremely simple in construction, easy touse, comprised of many known components and efdcient in operation.

Another object of the present invention is to provide a motor for avehicle in which both wheels on one side of the vehicle aresimultaneously driven.

Still other objects andl advantages will |appear from the followingdescription of anexemplifying embodiment the accompanying drawings:l a

Figure l is a schematic illustration of the Power device.

Figure 2 is a partial plan View of the motor of the present inventioninstalled on a vehicle;

Figure 3 is an elevation of the construction of Figure 2 with portionsthereof broken away; and

Figure 4 is a detailed sectional view taken substantially upon a planepassing along section line 4-4 of Figure 3 illustrating the constructionof the fluid motor.

Referring now particularly to the drawings, the numeral generallydesignates the power device of the present invention which is shown -asmounted on the frame 12 of a mobile vehicle with the frame -12 havingfront wheels 14 and rear wheels 16 mounted thereon. An operators seat 18is provided on the frame 12 with a plurality of control valve handles 20mounted adjacent thereto for controlling the power device. A singleenlarged air` pressure tank 22 is mounted longitudinally of the frameand receives air pressured by the air compressor 24 powered by a smallgasoline engine or the like 26.

'Ihe air tank 22 is provided with a single discharge Apipe 28 forleading to a throttle valve 38 supplying air under pressure to a iluidmotor power assembly on each side `of the frame. Since these powerassemblies are identical only a single assembly will be described indetail.

The speed of the fluid motor is controlled by throttle valve 38.

Each power assembly includes a pair lof oil tanks or reservoirs 30 and32 mounted on the frame 12 in any United States Patent O suitablemanner. Each reservoir 30 and 32 has an inlet pipe 34 having a valve 36therein with the inlet pipes 34 being interconnected and which in turnare connected with the single discharge pipe 28 from tank. 22 with thepipe 28 also having a valve 38 therein along with a gage 40. Eachreservoir is also provided lwith a discharge pipe 42, the dischargepipes 42 being parallel and being interconnected by a pair of crossoverpipes 44 and 46 each having a pair of spaced cut-oli valves 48 therein.The pipe 44 is connected with a pressure line 50 and the pipe 46 isconnected to a pressure line 52 and the pressure lines S0 and 52 areconnected lwith a iluid motor 54 having a drive gear 56 mounted fordisposal between and driving engagement with gears 58 carried by thewheels 14 and 16.

The gear 56 is integral with a cylindrical hollow casing 60 rotatablymounted on the frame 12 by a bearing bracket 62 which also receives ashaft 64 non-rotatably mounted therein having a stator 66 on the endthereof disposed within the casing 60. The shaft 64 and stator 66 arenon-rotatable` and are supported by support bracket 68 which also housesa cam 70 connected with the power wheel or rotatable casing 60 forcontrolling the valves 48 on the crossover lines 44 and 46 and thevalves 36 by `engaging levers 72 and 74 respectively as shown in Figurel. The cam 70 automatically controls the ow of oil through passageways76 and 78 in the stator 66 each of which Vhas two branch lines 80 and82. The branch lines 80 and 82 extend to the periphery of the stator 66and are disposed on opposite sides of a radially extending vane 84slidable in a radial blind bore 86. A spring 88 lis disposed between thevane 84 and the inner end of the blind bore for urging the sameoutwardly of the stator 66 into contact with the inner surface 90 of therotatable casing 60. A retainer 92 in the outer end of the bore or slot86 slidably receives the vane 84 and prevents lthe enlarged inner end 94thereof from sliding completely out of the bore 86.

In operation, the air tank 22 is pumped up to a desired capital pressurein the usual manner. The throttle valve 38 is manually` opened to`control speed such as by depressing an accelerator pedal to which thesame may be attached. With one valve 36 open the other will be closedthusallowing to enter oil reservoir 30 and pressuring the oil throughpipe 42. With the valve 48 on pipe 44 adjacent tank 30 open and theother valve on pipe 44 closed, the oil will liow through conduit 50 intopassageway 78 and be discharged between the vane 84 and a pocket 96 4inthe casing 60 and by exerting pressure on the vane 84 and the abutmentformed by the radial and curved deep end 98 of the pocket 96, the casing60 will be caused to rotate in a clockwise manner as shown in Figure l.Meanwhile oil between the vane 84 and the shallottr end of the pocket 90passes inwardly through branch lines 82, passageway 76 and into thecrossover pipe 46. The valve 48 in pipe 46 nearest the tank 30 is closedand the valve 48 in pipe 46 nearest tank 32 is open whereby vtheexhausting `oil will be returned to the tank or reservoir 32.

The cam 70 operates levers 72 and 74 which control means to reverse theorientation of the valves 48 and 36 whereby the iiow of oil through thefluid motor will not change and the tanks or reservoirs will bealternately filled and emptied by virtue of the cam 70 thereby providinga continuously running fluid motor for powering the wheels by using airpressure to pump oil and utilizing the Iflow and pressure of the oil torotate a power shaft. t

As shown rin the drawings, a iinal supplier for capital pressure isprovided which includes a gear 100 mesh- Patented June 21, 1960 larg'ellpulley 104'fat't`a'ched' thereto, the pulley 104 is in alignment with apulley 106 on the compressor 24 and is drivingly connected therewith bya belt 108 to keep up the capital pressure. The purpose of thisconstruction is totakeover` with-1an automatic'clutchconnecting pulley1061tocompres`sor 24 for producin'g'lpressure inthe tankafter'ithas'b'een pumped upto normal runningf pressure by the engine.

It is understoodV thatV this:Y invention lis not connedto the particularembodiment shown and described, the same being merely illustrative andthat this invention may becai'ried out-in other ways Within the scope ofthe'app'ended claimsl without departing from the spiritof-this-invention, as it is obviousthat the particular embodimentshownvand described isonly one of the manyv that; may be employed toattain theobjeots of this'inven- D;

l. A power unit for a vehicle comprising a'supportingframe, a` pairofground'engagingwheelsl arranged in tandem' on opposite sides vof saidsupporting frame, wheel ydriving gears' mounted-in tandem with one oneach ofY said wheels, apower driving gearsupported in meshing engagementin between each pair of wheel driving gears on yopposite sides' of saidframe, a single compressed air tank mounted on saideframe for holdinghighy pressure air, anrair compressor 'tosupply the initial high capitalpressure to said compressedV air tankA connected with said compressedair tank, a prime mover'conneoted with said air compressor, a pair ofoil reservoirs on each side ofsaidframev and supported'thereby, one'ofeach pairv of reservoirs` being initially iilled with oil, the second ofeach pair beingempty of oil when said rst is full,-

a 'single discharge pipe'connected aft/one end with said singlecompressed air rtank', said Vdischarge pipe having4 a throttle valveintermediate its ends and-,connected at itsy opposite end to cross-overlines connected to the' upperportions of each of said parir ofreservoirs, a` uid oil motor supportedron each side of said frame,veachl uid oil motor having Ya hollow casing rotatably mounted onitspower shaft, one of said powerdriving gears in` tegrally formed witheach of said hollow casings, pipe means for conveying oil from ytheilled oil reservoir on each side lof'saidframe tofsaid uid motor onthe'same side thereof-,-cross1 over pipe means for connecting the lowerend portions of each of reservoir of each pair and having-valve meansassociated therewith for controllingthe flow of oil from said oil filledreservoir to the fluid motor and back to said empty reservoir, gear andpulley means connected with said power driving gears and drivinglyconnected to said air compressor by an lautomatic clutch connectingpulley for driving said compressor while the motors are running to keepthe normal running air pressure in said compressed air tank, cam meansconnected with s-aid'rovtating hollow casing for controlling said valvesin the cross arms above and below said reservoirs whereby the flow ofoil from one reservoir under high-pressure`- to the other reservoir ofeach pair after passing through a uid motor is maintained inunidirectional'ow during alternating ow from one lreservoir to the otherof each pair.

2. The power unit as defined in claim 1 wherein each of said crossoverpipe means including 'a pipe having a pair lofV spaced 'valves thereonAand a' pressure line connected to each-of` the crossover pipes at-'apoint'- inter# mediate the spaced valves thereon thereby enabling oil toflow from either reservoir in the same relation to thef fluid motor.'

3. The structure as definedin-claim 1 wherein said" uid motor includes astator mounted Within casing,a

plurality of radial varies1 said stator, spring means* urging the vanesoutwardly of the stator-'into contact with" theperiphery of the casing,said casing 'having arcuate ReterencsCitel in the iileV ofthis patentUNITED STATES-f PATENTS1- 1,803,932 Denny May s, 1931 2,145,540 i=.11is.v Jan. s1, 1939A 2,446,242 orshonsky Y Aug; 3, 194sl`

